K&N High Flow Air Filter for Ducati Monster 821 Motorcycle - Street
K&N High Flow Air Filter for Ducati Monster 821 Motorcycle - Street
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Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
Ducati Monster 821 Motorcycle - Street (2015-2021)
The Ducati Monster 821, produced from 2015 to 2021, is a naked sportbike renowned for its accessible performance and iconic design. Powered by an 821cc Testastretta 11° L-twin engine, it offered a thrilling ride with varying horsepower outputs: 112 hp from 2015-2017, and 109 hp from 2018-2021 due to Euro4 compliance. Trims included the Standard, the matte black Dark, the distinctive Stripe with its red frame and white stripes, and the Stealth, featuring a matt black livery, quick shifter, and adjustable fork. A significant refresh occurred in 2018, introducing a new color TFT dash, updated bodywork resembling the Monster 1200, and Euro4 emissions compliance. While the 2021 Monster 821 in North America was a carry-over of the 2020 model, the 821 series was effectively replaced in other markets by a new Monster with a 937cc engine and a new chassis. This 2018 update represents the primary generation break within the 821's production run. FAQ:
Q: How do I ensure I select the correct parts for my Monster 821?
A: Please use our year and edition selector at the top of the page to find parts specifically compatible with your motorcycle.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Every 15,000 km or annually | Clean the engine oil intake mesh filter every other oil change. |
| Timing Belts | Every 30,000 km or every 5 years | |
| Spark Plugs | Every 15,000 km or annually | |
| Air Filter | Every 15,000 km or annually | Clean or replace. More frequently in dusty environments. |
| Coolant | Every 4 years |